This one is very ugly; it made my eyes bleed at times. There are some nice traps, the challenge is sometimes fair, and surviving can get difficult unless you know how to locate the powerups ... but this was still just too poorly designed for me to care. It looks like the author slapped together whatever came to his mind (especially in the second, dark hellish part). By the way, there's a nice unintended shortcut: the blue key can be grabbed very early on, allowing for an exit easily below 2 minutes. --1/5